CapabilitiesPrecision CNC Machining Services
For Aerospace Components
Custom Aerospace Engine
Component Concurrent
Engineering Services
Secondary Operations:
Specialty CMM Inspection &
Testing Capability
Example ProductsCNC Machining of 
Stainless Steel Seal Runners
for the Aerospace Industry
Fabrication & Assembly of
Turbine Exhaust Case Struts
CNC Machined
Titanium Shroud Sets
Custom CNC Machining of
Stator Assemblies
Custom Fabrication of Aluminum
Core Vane Assemblies
CNC Machining of
Titanium Sump Housing
CNC Milled Magnesium
Gearbox Housings & Cases

CNC Machining of Stainless Steel Seal Runners for the Aerospace Industry

A leader in manufacturing complex details and components for the aerospace industry, Birken Manufacturing provides machined stainless steel seal runners for aircraft engines. Several in-house processes, including precision CNC turning, CNC milling, lapping and OD grinding are incorporated to fabricate the runners. We also perform in-house deburring and dot peen marking. Outside services sourced to our vendor base include heat treatment and a tungsten carbide plasma spray coating. Tolerance requirements are held to .001" / .000", a circular run out of .0005", and cylindricity of .0003". Dimensional inspection as well as NDT inspection was done in-house. To learn more about our capabilities and services, please contact Birken Manufacturing or see below for details.

CNC Machining of Stainless Steel Seal Runners

Stainless Steel Seal Runners
CNC Machining of Stainless Steel Seal Runners

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